/Engine/Source/Runtime/MovieScene/Public/EntitySystem/MovieSceneEntitySystemLinker.h
[UMovieSceneEntitySystem](API\Runtime\MovieScene\EntitySystem\UMovieSceneEntitySystem) * LinkSystemIfAllowed ( [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UMovieSceneEntitySystem](API\Runtime\MovieScene\EntitySystem\UMovieSceneEntitySystem) > InClassType )